450027169 has 2 divisors, whose sum is σ = 450027170. Its totient is φ = 450027168.

The previous prime is 450027139. The next prime is 450027211. The reversal of 450027169 is 961720054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 437353569 + 12673600 = 20913^2 + 3560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450027169 is a prime.

It is a super-2 number, since 2×450027169² = 405048905676309122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (450027139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225013584 + 225013585.

It is an arithmetic number, because the mean of its divisors is an integer number (225013585).

Almost surely, 2^450027169 is an apocalyptic number.

It is an amenable number.

450027169 is a deficient number, since it is larger than the sum of its proper divisors (1).

450027169 is an equidigital number, since it uses as much as digits as its factorization.

450027169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 450027169 is about 21213.8438054022. The cubic root of 450027169 is about 766.3248542024.

The spelling of 450027169 in words is "four hundred fifty million, twenty-seven thousand, one hundred sixty-nine".